Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil

Detalhes bibliográficos
Autor(a) principal: Nascimento, Alexandre Ferreira do
Data de Publicação: 2013
Outros Autores: Furquim, Sheila Aparecida Correia [UNIFESP], Couto, Eduardo Guimarães, Beirigo, Raphael Moreira, Oliveira Júnior, Jairo Calderari de, Camargo, Plínio Barbosa de, Vidal-torrado, Pablo
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNIFESP
Texto Completo: http://dx.doi.org/10.1590/S0100-06832013000500001
http://repositorio.unifesp.br/handle/11600/7988
Resumo: The Pantanal region can be characterized as a quaternary floodplain with predominant sedimentation in the form of alluvial fans. In the geomorphologic and sedimentary evolution, the avulsion process is inherent to this depositional system and its dynamics, together with surface water floods, influence soil sedimentation on this plain. The knowledge and differentiation of these two events can contribute to a better understanding of the variability of soil properties and distribution under the influence of these sedimentation processes. Therefore, this study investigated the genesis of soils in the Northern Pantanal with textural contrasts in deeper horizons and their relationship with the depositional system dynamics. We analyzed four soil profiles in the region of Barão de Melgaço, Mato Grosso State, Brazil (RPPN SESC Pantanal). Two profiles were sampled near the Rio Cuiabá (AP1 and AP4) and two near the Rio São Lourenço (AP10 and AP11). In AP11, the horizons contrast in particle size between the profile basis and the surface. In AP1, AP4 and AP10, the horizons overlaying the sand layer have similar particle size properties, mainly in terms of sand distribution. In the first case, floods (surface water) seem to have originated the horizons and layers with contrasting texture. In the second case, avulsion is the most pronounced process. Therefore, the two modes can form soils with contrasting texture that are discriminable by soil morphology, based on the distinct features associated to the specific sedimentation processes.
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spelling Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-BrazilOrigem dos contrastes texturais de horizontes subsuperficiais em solos do Pantanal Nortealluvial soilshydromorphic soilsfluvial deposition systemalluvial fansavulsionsolos aluviaissolos hidromórficossistema deposicional fluvialleque aluvialavulsãoThe Pantanal region can be characterized as a quaternary floodplain with predominant sedimentation in the form of alluvial fans. In the geomorphologic and sedimentary evolution, the avulsion process is inherent to this depositional system and its dynamics, together with surface water floods, influence soil sedimentation on this plain. The knowledge and differentiation of these two events can contribute to a better understanding of the variability of soil properties and distribution under the influence of these sedimentation processes. Therefore, this study investigated the genesis of soils in the Northern Pantanal with textural contrasts in deeper horizons and their relationship with the depositional system dynamics. We analyzed four soil profiles in the region of Barão de Melgaço, Mato Grosso State, Brazil (RPPN SESC Pantanal). Two profiles were sampled near the Rio Cuiabá (AP1 and AP4) and two near the Rio São Lourenço (AP10 and AP11). In AP11, the horizons contrast in particle size between the profile basis and the surface. In AP1, AP4 and AP10, the horizons overlaying the sand layer have similar particle size properties, mainly in terms of sand distribution. In the first case, floods (surface water) seem to have originated the horizons and layers with contrasting texture. In the second case, avulsion is the most pronounced process. Therefore, the two modes can form soils with contrasting texture that are discriminable by soil morphology, based on the distinct features associated to the specific sedimentation processes.O Pantanal caracteriza-se por ser uma planície inundável quaternária, com sedimentação predominantemente na forma de leques aluviais. Na evolução geomorfológica e sedimentar, é inerente a esse sistema deposicional o processo de avulsão, cuja dinâmica, associada aos fluxos de águas superficiais de cheias, impõe diferenças sedimentares importantes nessa planície. O entendimento e a diferenciação desses dois eventos podem ajudar na compreensão da variabilidade dos atributos e da distribuição dos solos associados a esses processos sedimentares. Nesse sentido, o objetivo deste trabalho foi estudar a gênese de solos do Pantanal Norte que apresentam contrastes texturais em profundidade e sua relação com a dinâmica do sistema deposicional. Quatro perfis foram estudados na região de Barão de Melgaço, MT (RPPN SESC Pantanal), dois próximos ao rio Cuiabá (AP1 e AP4) e dois próximos ao rio São Lourenço (AP10 e AP11). No AP11, os horizontes apresentam contrastes granulométricos desde a base do perfil até a superfície. No AP1, AP4 e AP10, os horizontes sobrejacentes a uma camada arenosa possuem granulometria semelhante entre si, principalmente na distribuição de areia. No primeiro caso, os fluxos de cheias, ou seja, de águas superficiais, parecem ter originado os horizontes e as camadas contrastantes na textura; no segundo, a avulsão é o processo mais evidente. Dessa forma, as duas vias podem formar solos com contrastes texturais e é possível distingui-los no campo pela morfologia, pois possuem peculiaridades que estão associadas aos processos sedimentares responsáveis pelos depósitos.Embrapa Solos UEP RecifeFederal University of São PauloFederal University of Mato GrossoUniversity of São Paulo CENAUSP ESALQUNIFESPSciELOFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)FAPESP: 2009/50422-3FAPESP: 2011/11905-9Sociedade Brasileira de Ciência do SoloEmbrapa Solos UEP RecifeUniversidade Federal de São Paulo (UNIFESP)Federal University of Mato GrossoUniversity of São Paulo CENAUniversidade de São Paulo (USP)Nascimento, Alexandre Ferreira doFurquim, Sheila Aparecida Correia [UNIFESP]Couto, Eduardo GuimarãesBeirigo, Raphael MoreiraOliveira Júnior, Jairo Calderari deCamargo, Plínio Barbosa deVidal-torrado, Pablo2015-06-14T13:45:39Z2015-06-14T13:45:39Z2013-10-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersion1113-1127application/pdfhttp://dx.doi.org/10.1590/S0100-06832013000500001NASCIMENTO, Alexandre Ferreira do et al . Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil. Rev. Bras. Ciênc. Solo, Viçosa , v. 37, n. 5, p. 1113-1127, out. 201310.1590/S0100-06832013000500001S0100-06832013000500001.pdf0100-0683S0100-06832013000500001http://repositorio.unifesp.br/handle/11600/7988WOS:000329054800001engRevista Brasileira de Ciência do Soloinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UNIFESPinstname:Universidade Federal de São Paulo (UNIFESP)instacron:UNIFESP2024-08-05T07:34:15Zoai:repositorio.unifesp.br/:11600/7988Repositório InstitucionalPUBhttp://www.repositorio.unifesp.br/oai/requestbiblioteca.csp@unifesp.bropendoar:34652024-08-05T07:34:15Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)false
dc.title.none.fl_str_mv Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
Origem dos contrastes texturais de horizontes subsuperficiais em solos do Pantanal Norte
title Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
spellingShingle Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
Nascimento, Alexandre Ferreira do
alluvial soils
hydromorphic soils
fluvial deposition system
alluvial fans
avulsion
solos aluviais
solos hidromórficos
sistema deposicional fluvial
leque aluvial
avulsão
title_short Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
title_full Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
title_fullStr Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
title_full_unstemmed Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
title_sort Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil
author Nascimento, Alexandre Ferreira do
author_facet Nascimento, Alexandre Ferreira do
Furquim, Sheila Aparecida Correia [UNIFESP]
Couto, Eduardo Guimarães
Beirigo, Raphael Moreira
Oliveira Júnior, Jairo Calderari de
Camargo, Plínio Barbosa de
Vidal-torrado, Pablo
author_role author
author2 Furquim, Sheila Aparecida Correia [UNIFESP]
Couto, Eduardo Guimarães
Beirigo, Raphael Moreira
Oliveira Júnior, Jairo Calderari de
Camargo, Plínio Barbosa de
Vidal-torrado, Pablo
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Embrapa Solos UEP Recife
Universidade Federal de São Paulo (UNIFESP)
Federal University of Mato Grosso
University of São Paulo CENA
Universidade de São Paulo (USP)
dc.contributor.author.fl_str_mv Nascimento, Alexandre Ferreira do
Furquim, Sheila Aparecida Correia [UNIFESP]
Couto, Eduardo Guimarães
Beirigo, Raphael Moreira
Oliveira Júnior, Jairo Calderari de
Camargo, Plínio Barbosa de
Vidal-torrado, Pablo
dc.subject.por.fl_str_mv alluvial soils
hydromorphic soils
fluvial deposition system
alluvial fans
avulsion
solos aluviais
solos hidromórficos
sistema deposicional fluvial
leque aluvial
avulsão
topic alluvial soils
hydromorphic soils
fluvial deposition system
alluvial fans
avulsion
solos aluviais
solos hidromórficos
sistema deposicional fluvial
leque aluvial
avulsão
description The Pantanal region can be characterized as a quaternary floodplain with predominant sedimentation in the form of alluvial fans. In the geomorphologic and sedimentary evolution, the avulsion process is inherent to this depositional system and its dynamics, together with surface water floods, influence soil sedimentation on this plain. The knowledge and differentiation of these two events can contribute to a better understanding of the variability of soil properties and distribution under the influence of these sedimentation processes. Therefore, this study investigated the genesis of soils in the Northern Pantanal with textural contrasts in deeper horizons and their relationship with the depositional system dynamics. We analyzed four soil profiles in the region of Barão de Melgaço, Mato Grosso State, Brazil (RPPN SESC Pantanal). Two profiles were sampled near the Rio Cuiabá (AP1 and AP4) and two near the Rio São Lourenço (AP10 and AP11). In AP11, the horizons contrast in particle size between the profile basis and the surface. In AP1, AP4 and AP10, the horizons overlaying the sand layer have similar particle size properties, mainly in terms of sand distribution. In the first case, floods (surface water) seem to have originated the horizons and layers with contrasting texture. In the second case, avulsion is the most pronounced process. Therefore, the two modes can form soils with contrasting texture that are discriminable by soil morphology, based on the distinct features associated to the specific sedimentation processes.
publishDate 2013
dc.date.none.fl_str_mv 2013-10-01
2015-06-14T13:45:39Z
2015-06-14T13:45:39Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1590/S0100-06832013000500001
NASCIMENTO, Alexandre Ferreira do et al . Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil. Rev. Bras. Ciênc. Solo, Viçosa , v. 37, n. 5, p. 1113-1127, out. 2013
10.1590/S0100-06832013000500001
S0100-06832013000500001.pdf
0100-0683
S0100-06832013000500001
http://repositorio.unifesp.br/handle/11600/7988
WOS:000329054800001
url http://dx.doi.org/10.1590/S0100-06832013000500001
http://repositorio.unifesp.br/handle/11600/7988
identifier_str_mv NASCIMENTO, Alexandre Ferreira do et al . Genesis of textural contrasts in subsurface soil horizons in the Northern Pantanal-Brazil. Rev. Bras. Ciênc. Solo, Viçosa , v. 37, n. 5, p. 1113-1127, out. 2013
10.1590/S0100-06832013000500001
S0100-06832013000500001.pdf
0100-0683
S0100-06832013000500001
WOS:000329054800001
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Revista Brasileira de Ciência do Solo
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 1113-1127
application/pdf
dc.publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
publisher.none.fl_str_mv Sociedade Brasileira de Ciência do Solo
dc.source.none.fl_str_mv reponame:Repositório Institucional da UNIFESP
instname:Universidade Federal de São Paulo (UNIFESP)
instacron:UNIFESP
instname_str Universidade Federal de São Paulo (UNIFESP)
instacron_str UNIFESP
institution UNIFESP
reponame_str Repositório Institucional da UNIFESP
collection Repositório Institucional da UNIFESP
repository.name.fl_str_mv Repositório Institucional da UNIFESP - Universidade Federal de São Paulo (UNIFESP)
repository.mail.fl_str_mv biblioteca.csp@unifesp.br
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